TL;DR: Cigna Healthcare modified MM 0600 — its site of care coverage policy for physical and occupational therapy in outpatient hospital settings — effective October 1, 2025. Here's what billing teams need to know before that date hits.
This update to Cigna's physical therapy and occupational therapy coverage policy applies to both adult and pediatric patients receiving services in outpatient hospital settings. MM 0600 in the Cigna system now has a modified medical necessity framework for this site of care. The policy does not list specific CPT or HCPCS codes in the published data — but don't let that lull you into complacency. Site of care policies carry real claim denial risk, and this one affects a high-volume service category.
Quick-Reference Table
| Field | Detail |
|---|---|
| Payer | Cigna Healthcare |
| Policy | Site of Care: Outpatient Hospital Setting for Physical and Occupational Therapy |
| Policy Code | MM 0600 |
| Change Type | Modified |
| Effective Date | October 1, 2025 |
| Impact Level | High |
| Specialties Affected | Physical therapy, occupational therapy, outpatient hospital billing, pediatric rehabilitation |
| Key Action | Audit all PT and OT claims billed in outpatient hospital settings against the updated medical necessity and site of care criteria before October 1, 2025 |
Cigna Physical and Occupational Therapy Coverage Criteria and Medical Necessity Requirements 2025
MM 0600 in the Cigna system is a site of care policy. That's a specific and important distinction. This isn't a policy about whether physical therapy or occupational therapy is covered — it's about where those services are covered and under what circumstances an outpatient hospital setting is medically necessary to deliver them.
That distinction matters enormously for billing teams. A PT or OT claim can have perfect clinical documentation and still get denied under a site of care policy if Cigna determines the service could have been provided in a less expensive, lower-acuity setting — a freestanding outpatient clinic, for example.
The Cigna physical therapy and occupational therapy coverage policy under MM 0600 applies to both adult and pediatric patients. That pediatric scope is worth flagging. Children's hospitals and pediatric outpatient departments carry different operational realities than adult settings, but Cigna is applying one framework to both populations under this policy. If your facility bills PT or OT for pediatric patients in an outpatient hospital setting, you need to treat this as a high-priority review.
Medical necessity under a site of care policy typically requires that the patient's clinical condition — complexity, comorbidities, required monitoring, or equipment needs — justifies the higher-cost hospital outpatient environment over a freestanding clinic. Cigna's position is that the outpatient hospital setting must be the medically necessary location of service, not merely a convenient one. Your documentation has to support that.
Prior authorization requirements for PT and OT services in outpatient hospital settings under Cigna vary by plan. That hasn't changed with this modification, but this policy update is a good prompt to verify your prior auth workflows are current for Cigna patients in this setting. A claim denied for site of care grounds is painful. A claim denied because prior authorization wasn't obtained is worse — and often non-recoverable.
Reimbursement rates for PT and OT services in outpatient hospital settings are higher than in freestanding clinic settings. That differential is exactly why payers scrutinize this site of care. Expect Cigna's reviewers to apply the updated medical necessity criteria to both prospective authorization requests and retrospective audits.
Coverage Indications at a Glance
The published policy summary for MM 0600 addresses physical and occupational therapy in the outpatient hospital setting without breaking out individual indication-level criteria in the available data. The table below reflects what the policy scope covers based on the published summary.
| Indication | Status | Relevant Codes | Notes |
|---|---|---|---|
| Physical therapy in outpatient hospital setting — adult patients | Covered when medical necessity criteria are met | Not specified in published data | Site of care justification required |
| Occupational therapy in outpatient hospital setting — adult patients | Covered when medical necessity criteria are met | Not specified in published data | Site of care justification required |
| Physical therapy in outpatient hospital setting — pediatric patients | Covered when medical necessity criteria are met | Not specified in published data | Same framework as adult; pediatric-specific documentation recommended |
| Occupational therapy in outpatient hospital setting — pediatric patients | Covered when medical necessity criteria are met | Not specified in published data | Same framework as adult; pediatric-specific documentation recommended |
| PT or OT services where a freestanding clinic setting is clinically appropriate | Not covered in outpatient hospital setting | Not specified in published data | Site of care denial risk; service may still be covered in alternative setting |
Cigna Physical and Occupational Therapy Billing Guidelines and Action Items 2025
The effective date is October 1, 2025. That gives you a window to act. Use it.
| # | Action Item |
|---|---|
| 1 | Pull your Cigna outpatient hospital PT and OT claims from the last 12 months. Look at volume, denial rates, and which claim lines were flagged for site of care issues. That data tells you where your exposure is before the updated policy applies. |
| 2 | Update your medical necessity documentation templates for PT and OT services in outpatient hospital settings. Documentation must specifically address why the outpatient hospital setting — not a freestanding PT or OT clinic — is clinically required for that patient. Generic therapy notes don't cut it under a site of care policy. |
| 3 | Verify prior authorization requirements for each Cigna plan product in your payer mix. Commercial, Cigna + Oscar, and employer-sponsored plans can have different prior auth rules. Confirm which products require prior auth for outpatient hospital PT and OT before October 1, 2025. |
| 4 | Brief your physical therapists, occupational therapists, and clinical documentation specialists on the site of care standard. They need to understand that Cigna's question isn't "does this patient need PT or OT?" — it's "does this patient need PT or OT in a hospital outpatient department specifically?" The answer has to be in the record. |
| 5 | Flag pediatric PT and OT separately in your audit. If your organization bills PT or OT for pediatric patients in the hospital outpatient setting, those accounts deserve their own review. Pediatric complexity may support site of care justification — but only if it's documented. |
| 6 | Set up a denial tracking workflow for MM 0600 starting October 1, 2025. If you see a spike in site of care denials for PT and OT after the effective date, you want to catch it in week two — not month three. Early denial pattern recognition is the difference between a manageable appeals queue and a revenue problem. |
| 7 | If your payer mix is heavily weighted toward outpatient hospital PT and OT, talk to your compliance officer before October 1. Site of care policies can create both prospective denial risk and retrospective audit exposure. Your compliance officer needs to know this policy changed. |
| Previous Version | Current Version |
|---|---|
| Coverage is considered experimental and investigational for all indications | Coverage is considered medically necessary when specific criteria are met |
| Prior authorization is not required | Prior authorization is required for initial treatment |
| Documentation must include clinical history | Documentation must include clinical history |
| Re-review every 24 months | Re-review every 12 months with updated clinical documentation |
CPT, HCPCS, and ICD-10 Codes for Physical and Occupational Therapy Under MM 0600
The published policy data for MM 0600 does not list specific CPT codes, HCPCS codes, or ICD-10-CM diagnosis codes. This is not unusual for a site of care policy — the coverage framework governs the setting, not the specific procedure codes.
That said, your billing team should know which codes are typically associated with outpatient hospital PT and OT billing. These are standard therapy evaluation and treatment codes your charge capture already uses. The site of care policy governs whether those codes are payable in the hospital outpatient setting — it doesn't change the codes themselves.
What this means for your charge capture: You aren't changing your CPT coding for PT and OT services. You're ensuring that the clinical documentation and, where required, the prior authorization, support billing those codes in the outpatient hospital place of service rather than a freestanding clinic.
Review your facility's standard PT and OT code set — evaluation codes, therapeutic procedure codes, and any codes your outpatient hospital department bills under the revenue code structure — and confirm your documentation standards support Cigna's site of care medical necessity criteria for each. If you're unsure which codes are in scope for your specific Cigna contracts, pull the contracts and review the therapy benefit provisions directly, or contact your Cigna provider relations representative.
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